I tried a Lucent Orinoco PCI->Cardbus adapter on 1.5V (or rather, on a
1.5V kernel -- user level is still 1.5R, but it never got that far...)
At boot time, it recognized the card:
cbb0: interrupting at irq 10
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 0 device 0 cacheline 0x8, lattimer 0x20
pcmcia0 at cardslot0
Oddly enough, it said the same thing for cbb1/cardslot1/cardbus1/
pcmcia1, even though the adapter has only one slot. And it recognized
a wi0 card plugged into it at boot time, though it also said
wi0: using Lucent chip or unknown chip
That's the good news.
Right after that, it paused for a bit, then said
pcic_wait_ready: ready never happened, status = 4f
I could shrug that off as "the driver doesn't quite know about this
card", but the next lines that appeared were
uvm_fault(0xc05a0a60, 0xd3c0c000, 0, 1) -> e
kernel: page fault trap, code = 0
Stopped in pid 6 (cardslot1) at pcmcia_scan_cis+0x17e...
Perhaps significantly, the wi0 card was found in slot 1.
Trace shows the call chain
pcmcia_scan_cis
pcmcia_read_cis
pcmcia_card_attach
cardslot_event_thread
--Steve Bellovin, http://www.research.att.com/~smb